Finding the Fourth Proportional to 34,637.42, 51,992.86 and 28,142.02

Step by Step Solution

1. Step 1: Write the proportion equation
   34,637.42 : 51,992.86 = 28,142.02 : x
2. Step 2: Convert to fraction form
   34,637.42/51,992.86 = 28,142.02/x
3. Step 3: Cross multiply
   34,637.42x = 51,992.86 × 28,142.02
4. Step 4: Simplify right side
   34,637.42x = 1,463,184,105.98
5. Step 5: Solve for x
   x = 1,463,184,105.98/34,637.42
6. Step 6: Final answer
   x = 42,242.87